The structure of (mostly dark) halos

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• Prof. Carlos Frenk, University of Durham
• Thursday 21 May 2009, 16:30-17:30
• Sackler Lecture Theatre, IoA (tea at 4.00 pm).

If you have a question about this talk, please contact scott chapman.

The standard model of cosmology—the ``Lambda cold dark matter’’ model—is based on the idea that the dark matter is a collisionless elementary particle, probably a supersymmetric particle. This model has been famously verified by observations of the cosmic microwave background radiation and the large-scale distribution of galaxies. However, the model has yet to be tested conclusively on the small scales appropriate to most astronomical objects, such as galaxies and clusters. I will review our current understanding of the distribution of dark matter on small scales which derives largely from large cosmological N-body simulations and I will discuss prospects for detecting dark matter, either through its gravitational effect on galaxies and clusters or, more directly, through gamma-ray annihilation radiation.

This talk is part of the Institute of Astronomy Colloquia series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy Colloquia
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Priscilla
• Sackler Lecture Theatre, IoA (tea at 4.00 pm)

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